RRD::Ruby
Native ruby implementation of RRD format parsing. Don't need all these pesky C libraries.
Doesn't include any update functionality, so you still have to use rrdtool to update your data.
Installation
Add this line to your application's Gemfile:
gem 'rrd-ruby'
And then execute:
$ bundle
Or install it yourself as:
$ gem install rrd-ruby
Usage
require 'rrd'
file = RRD::File.new("path/to/my_awesome.rrd")
# Get all Round Robin Archive infos
rra = file.rra
# Get all DataSource infos
ds = file.datasources
# Get all data from RRA in specified time interval
data = file.data(rra.first).fetch(start_time: 20.minutes.ago, end_time: 5.minutes.ago)
# Format data right in reading loop (perfomance for perfomance god!)
data = file.data(rra.first).fetch do |row, columns|
columns # => [:time, :col1, :col2, :col3]
row # => [123345345, 123.0, 456.0, 789.0]
# turn em into hash
Hash[columns.zip(row)] # => { time: 123345345, col1: 123.0, col2: 456.0, col3: 789.0 }
end
# => [... , { time: 123345345, col1: 123.0, col2: 456.0, col3: 789.0 }, ...]
# All data read from file stream, right on spot
file.closeContributing
- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request